This hack makes it possible to play Rad Racer 2 without the need of extra name table VRAM for four-screen mirroring.
The only drawback is that the backgrounds repeats each 256 pixels instead of each 512 pixels
Rad Racer 2 (U) [!].nes
CRC32: 39D371EC
MD5: A0638990881F84395D5F0FD9F4BC3381
SHA-1: 143014BE43DF5126249648D62E2193550FEC03A8